Q: Mountain Lion: MacBook Pro NOT showing as a shared device on iMac.

I am running Mountain Lion on my iMac and MacBook Pro, for whatever reason the MBP does not show up as a "shared" device on the iMac, but the iMac shows as shared device on the MBP, I have ALL of the proper "file sharing" settings mirrored on both, also when I try to connect via Go>>Connect to Server on the iMac, the MBP is not even visible nor will it connect to afp://i.p address. Any insight as to what could be causing this, or how to resolve it? Please help!!